/Engine/Plugins/Editor/GameplayTagsEditor/Source/GameplayTagsEditor/Public/GameplayTagsEditorModule.h
Tries to delete a tag from the library. This will pop up special UI or error messages as needed. It will also delete redirectors if that is specified.
bool DeleteTagFromINI ( [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< struct [FGameplayTagNode](API\Runtime\GameplayTags\FGameplayTagNode) > TagNodeToDelete )